SHA加密

import java.security.MessageDigest;

/**
 * 提供SHA加密
 */
public class SHAUtil {

   // 进行SHA-1加密
   public static String SHAEncode(String message) {
      String resultString = null;

      try {
         MessageDigest md = MessageDigest.getInstance("SHA");
         md.update(message.getBytes());
         resultString = bytes2HexString(md.digest());
      } catch (Exception e) {
         e.printStackTrace();
      }
      return resultString;
   }

   // 将Bytes数据转换成16进制字符串格式
   public static String bytes2HexString(byte[] bts) {
      String des = "";
      String tmp = null;
      for (int i = 0; i < bts.length; i++) {
         tmp = (Integer.toHexString(bts[i] & 0xFF));
         if (tmp.length() == 1) {
            des += "0";
         }
         des += tmp;
      }
      return des;
   }

}